What is the Least Common Multiple of 18729 and 18742?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least Common Multiple of 18729 and 18742 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18729 and 18742, than apply into the LCM equation.

GCF(18729,18742) = 1
LCM(18729,18742) = ( 18729 × 18742) / 1
LCM(18729,18742) = 351018918 / 1
LCM(18729,18742) = 351018918

Least Common Multiple (LCM) of 18729 and 18742 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18729 and 18742. First we will calculate the prime factors of 18729 and 18742.

Prime Factorization of 18729

Prime Factorization of 18742

Now multiplying the highest exponent prime factors to calculate the LCM of 18729 and 18742.

LCM(18729,18742) = 3² × 2081¹ × 2¹ × 9371¹
LCM(18729,18742) = 351018918